If a bird travels 5 km in 2 hours and then speeds up to 7 km in another 2 hours what is it’s average speed

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?